package Test;

/**
 * Created by 春旺 on 2017/4/27.
 */

         import java.util.Scanner;

         public class MyDCTester  {

             public static void main (String[] args) {

             String expression, again;

            int result;

            try
             {
                   Scanner in = new Scanner(System.in);

                   do
                    {
                       MyDC evaluator = new MyDC();
                        System.out.println ("Enter a valid postfix expression: ");
                       expression = in.nextLine();

                   result = evaluator.evaluate (expression);
                  System.out.println();
                         System.out.println ("That expression equals " + result);

                        System.out.print ("Evaluate another expression [Y/N]? ");
                       again = in.nextLine();
                        System.out.println();
                     }
                  while (again.equalsIgnoreCase("y"));
                }
            catch (Exception IOException)
             {
                  System.out.println("Input exception reported");
                }
           }
  }
